Combining Texts

All the ideas for 'Through the Looking Glass', 'Possible Worlds' and 'On the General Idea of Proof Theory'

expand these ideas     |    start again     |     specify just one area for these texts

---

6 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

13827

Logical consequence isn't a black box (Tarski's approach); we should explain how arguments work [Prawitz]

5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models

13826

Model theory looks at valid sentences and consequence, but not how we know these things [Prawitz]

7. Existence / A. Nature of Existence / 2. Types of Existence

15789

Lewis's distinction of 'existing' from 'being actual' is Meinong's between 'existing' and 'subsisting' [Lycan on Lewis]

7. Existence / A. Nature of Existence / 3. Being / e. Being and nothing

21982

I only wish I had such eyes as to see Nobody! It's as much as I can do to see real people. [Carroll,L]

10. Modality / E. Possible worlds / 1. Possible Worlds / d. Possible worlds actualism

15790

Lewis can't know possible worlds without first knowing what is possible or impossible [Lycan on Lewis]

15791

What are the ontological grounds for grouping possibilia into worlds? [Lycan on Lewis]